Indianapolis Colts quarterback Andrew Luck smiles as he graduates from Stanford University during a graduation ceremony in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

Indianapolis Colts quarterback Andrew Luck, right, and golfer Michelle Wie, left, graduate from Stanford University during a ceremony in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

Indianapolis Colts quarterback Andrew Luck, center, smiles with Pittsburgh Steelers guard David DeCastro, second from left, as they graduate from Stanford University during a ceremony in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

Indianapolis Colts quarterback Andrew Luck graduates from Stanford University during a ceremony in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

Indianapolis Colts quarterback Andrew Luck smiles as he graduates from Stanford University during a ceremony in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

Pittsburgh Steelers guard David DeCastro smiles after graduating from Stanford University in Stanford, Calif., Sunday, June 17, 2012. (AP Photo/Paul Sakuma)

In this photo provided by Miami University, Pittsburgh Steelers quarterback Ben Roethlisberger receives his bachelor's degree in education during a commencement ceremony at the campus, Sunday, May 6, 2012, in Oxford, Ohio. Roethlisberger played football for Miami from 2001 to 2003, setting several school passing records, and over the course of several years completed the remaining courses necessary to graduate nine years after leaving for the NFL. (AP Photo/Miami University, Jeff Sabo)

University of Southern California's All-American wide receiver Keyshawn Johnson, selected by the New York Jets as the No. 1 overall pick in the recent NFL draft, receives his bachelor's degree in history during USC's graduation ceremonies on Friday, May 10, 1996 in Los Angeles. (AP Photo/Nick Ut)

Buffalo Bills' quarterback Doug Flutie receives an honorary Doctor of Humane Letters degree during the 174th commencement ceremonies at Cazenovia College Saturday monring, May 15, 1999, in Cazenovia, N.Y. Flutie is honored for his efforts to raise awareness about autism and the school's college nursery school was renamed in honor of his son Doug Jr. At right is Cazenovia President Van Titus. (AP Photo/Michael Okoniewski)

FBI Director Louis Freeh and Washington Redskins cornerback Darrell Ray Green, right, talk during the commencment exercises of Marymount University at Constitution Hall in Washington, Sunday, May 16, 1999. Both were awarded the honorary degree of Doctor of Humane Letters: Freeh for his career in law enforcement and public service and Green for his endeavors on behalf of at-risk youths and the homeless. (AP Photo/Linda Spillers)

New England Patriots coach Bill Belichick delivers the commencement speech to the 2004 graduating class of the New England Institute of Technology, Sunday, May 2, 2004, in Providence, R.I. Belichick was also conferred an honorary degree from the institute. (AP Photo/Stew Milne)

New England Patriots' coach Bill Belichick delivers the commencement speech to the 2004 graduating class of the New England Institute of Technology, Sunday, May 2, 2004, in Providence, R.I. Belichick was also conferred an honorary degree from the institute. (AP Photo/Stew Milne)

New England Patriots coach Bill Belichick, a 1975 graduate of Wesleyan University, waves to the commencement crowd before receiving the Raymond E. Baldwin medal Sunday, May 26, 2002, in New Haven, Conn. (AP Photo/Irena Pastorello)

Randall Cunningham, who spent 16 seasons in the NFL as a quarterback with Philadephia, Minnesota, Baltimore, and Dallas, stands with other UNLV graduates at the Thomas & Mack Center in Las Vegas, Monday, Dec. 20, 2004. Cunningham was to recieve his bachelor's degree 20 years after leaving UNLV. (AP Photo/Joe Cavaretta)

Randall Cunningham, who spent 16 seasons in the NFL as a quarterback with Philadephia, Minnesota, Baltimore, and Dallas, stands with other UNLV graduates at the Thomas & Mack Center in Las Vegas, Monday, Dec. 20, 2004. Cunningham was to recieve his bachelor's degree 20 years after leaving UNLV. (AP Photo/Joe Cavaretta)

Joe Namath speaks to the media about receiving his Bachelor's degree at the University of Alabama in Tuscaloosa, Ala., Friday, Dec. 14, 2007. Joining him are from left, Dr. Carolyn Dahl, dean of UA College of Continuing Studies, Rebecca Pow, Assistant Dean in College of Continuing Studies, James Hall, Director of New College, Ana Schuber, curriculum advisor to Namath, Dr. Robert Halli, Namath's professor for his 12-hour senior project and Dr. Robert Olin, dean of UA College of Arts and Sciences. (AP Photo/Porfirio Solorzano)

FILE In this May 31, 2008, file photo, Caleb Campbell, right, who was drafted into the NFL by the Detroit Lions, salutes as he receives his diploma at the United States Military Academy at West Point, N.Y. Campbell will not get a chance to play football for the Lions because of a change in military policy. Campbell was a seventh-round draft pick for the Lions in April. At the time, Army policy would have allowed the West Point graduate to serve as a recruiter if he made the team. But a subsequent Department of Defense policy has superseded the 2005 Army policy. (AP Photo/Mike Groll, File)

The 1965 graduating class of the New York University Law School, including scholarship recipient Paul Tagliabue (second from left). Paul Tagliabue - NFL Commissioner - File Photos (AP Photo/NFL Photos)

NFL Commissioner Roger Goodell speaks during commencement ceremonies at UMass-Lowell at the Tsongas Center in Lowell, Mass., Saturday, May 29, 2010. (AP Photo/Mary Schwalm)

NFL Commissioner Roger Goodell, second left, is joined by his brothers Jeffery, left, Tim, and Bill, right, as they accept a Doctor of Humane Letters posthumously for their late father U.S. Sen. Charles Goodell during commencement ceremonies at UMass-Lowell at the Tsongas Center in Lowell, Mass., Saturday, May 29, 2010. (AP Photo/Mary Schwalm)

NFL Commissioner Roger Goodell speaks during commencement ceremonies at UMass-Lowell at the Tsongas Center in Lowell, Mass., Saturday, May 29, 2010. (AP Photo/Mary Schwalm)

Stephen M. Ross, chairman, CEO and managing partner, The Related Companies and Miami Dolphins owner, acknowledges graduates while receiving an honorary degree, Doctor of Laws, at the University of Michigan commencement at Michigan Stadium in Ann Arbor, Mich., Saturday, April 30, 2011. (AP Photo/Paul Sancya)

Denver Broncos defensive lineman Ben Garland, right, salutes Brig. Gen. Trulan A. Eyre during a ceremony where Garland was sworn into the Colorado Air National Guard by at the team's headquarters and training facility in Englewood, Colo., on Wednesday, May 30, 2012. Garland graduated from the U. S. Air Force Academy in 2010.(AP Photo/Ed Andrieski)